What Semax is
Semax is an ACTH(4-10) analogue. A synthetic fragment of adrenocorticotropic hormone with a proline-glycine-proline tail, studied for nootropic and neuroprotective signalling without corticotropic activity.
Class and mechanism
Semax is an ACTH(4-10) analogue. A synthetic fragment of adrenocorticotropic hormone with a proline-glycine-proline tail, studied for nootropic and neuroprotective signalling without corticotropic activity.
Where it sits
Wellbeing compounds are grouped by the outcome they are studied for rather than by shared chemistry, so the class column varies widely across the group.
Others in the wellbeing compounds range
Semax sits in the wellbeing compounds group. The compounds below share that grouping, which is the useful starting point when comparing one against another: same group means the comparison is like for like, different group usually means it is not.
| Compound | Class | Listings | From |
|---|---|---|---|
| Melanotan II | Non-selective melanocortin agonist | 3 | £15 |
| PT-141 | Melanocortin receptor agonist | 2 | £20 |
| Melanotan I | Selective MC1R agonist | 1 | £50 |
| Selank | Anxiolytic heptapeptide | 1 | £30 |
| Kisspeptin-10 | KISS1R agonist | 1 | £50 |
| Cialis | PDE5 inhibitor | 1 | £12 |
Is it held in UK stock?
Stock held in the UK ships domestically, with no customs step. The product page carries live stock rather than a cached figure.
Quanta Pharma Semax 10mg - Nasal Sprayin stock£30
Availability checked 2026-09-09. The product page carries live stock.